Rock drill tools T38 thread button rock drill bit 76mm Thread
Button Bit
Description Of Thread Button Bit:
Rock Drill Thread Button Bits is suitable for R22, R25, R28, R32,
R35, R38, T38, T45, T51, ST58, T60 rock drill rods use. It have
many thread. It's widely used for hard rock(f=8~18) drilling use.
1) Thread connection: R22, R25, R28, R32, R35, R38, T38, T45, T51,
ST58, GT60
2) Alloy steel:45CrNiMoVa
3) Suitable carbide tips:YK05
4)Technology:hot-pressing or welding
Specification:
| R38/T38 Button bits, normal skirt |
| Diameter | | T.C buttons | | Flushing hole | | Angle | Weight |
| mm | inch | Gauge x mm | Front x mm | Side | Front | Gauge | Kg |
| 64 | 2 1/2 | 6x13 | 3x11 | 0 | 3 | 35° | 1.43 |
| 64 | 2 1/2 | 6x11 | 4x10 | 1 | 2 | 35° | 1.42 |
| 64 | 2 1/2 | 8x10 | 4x10 | 0 | 2 | 40° | 1.44 |
| 64 | 2 1/2 | 6x11 | 3x10,1x10 | 1 | 3 | 35° | 1.41 |
| 70 | 2 3/4 | 8x11 | 4x11 | 0 | 2 | 40° | 1.75 |
| 70 | 2 3/4 | 6x13 | 3x10,1x10 | 0 | 3 | 35° | 1.87 |
| 76 | 3 | 6x13 | 4x11 | 0 | 2 | 35° | 2.25 |
| 76 | 3 | 8x12 | 4x12 | 0 | 2 | 35° | 2.38 |
| 76 | 3 | 8x12 | 5x11 | 1 | 2 | 35° | 2.41 |
| 76 | 3 | 6x13 | 3x12,1x11 | 1 | 3 | 35° | 2.21 |
| 76 | 3 | 8x12 | 4x11,1x11 | 1 | 4 | 35° | 2.44 |
| 89 | 3 1/2 | 8x13 | 4x13 | 0 | 2 | 40° | 3.24 |
| 89 | 3 1/2 | 8x13 | 4x11,1x11 | 0 | 4 | 35° | 3.31 |
Advantage :
1) High quality;
2) High resistance;
3) High footage speed;
4) Very low breakage;
5) Very low percentage of carbide falling off.
6) Wide application range.
